Power away rust
If you don't have either commercial cleaner, use a wire wheel in an electric drill to loosen rust particles, photo right. Then wipe the surface clean with acetone. On light rust, this method proves about as quick as the cleaners.
A wire wheel works better than the cleaners on deep rust, though. Keep the spinning brush flat on the surface to avoid scratching the cast iron. If you should create scratches, you can remove them with 400-grit wet/dry sandpaper and a light lubricant such as WD-40. Switch to 800 grit and repeat the process if you still see scratches.
Add your comment
Please confirm your comment by answering the question below and clicking "Submit Comment."